Coin roll hunting is fun. When I first started stacking, I'd watch live coin roll hunting videos. I am always so amazed by the 40% and 90% silver halves that can still be found in half dollar boxes from banks. Quarters are trickier. You'll never know... silver quarter and dimes are known to show up in coin machines!
Have a wonderful evening, @themanwithnoname! Take care.
!tip
I looked through halves for a while, but didn't really find anything. I also check the coinstar machines sometimes when I'm in the store. Haven't really found anything though. It's still fun to look!